摘要
液体沸腾状态影响微小通道换热器的热性能和稳定性,而传统的接触式监测方法存在流动干扰和电极污染等缺点。为解决对微小通道液体沸腾状态在线监测手段不能满足需求的难题,提出了一种基于固-液/固-气摩擦纳米发电机(S-L/S-G TENG)的非接触式微小通道流动液体沸腾状态监测传感器,该传感器的输出信号能根据不同沸腾状态下固-液、固-气接触转变而改变,实现了对微小通道流动液体沸腾状态在不同工况下形成的4种流型的识别和在线监测。这项工作不仅为微小通道流动液体沸腾状态的在线监测提供了一种非接触式的监测方法,也是基于摩擦纳米发电机的微流体传感技术的一种新应用。
The boiling state of liquid affects the thermal performance and stability of mini/microchannel heat exchanger.However,the conventional contact monitoring methods have disadvantages such as flow interference and electrode contamination.To solve the difficulty that online liquid boiling state monitoring methods for mini/micro-channels cannot meet the current requirements,a non-contact flow boiling state monitoring sensor based on solid-liquid/solid-gas triboelectric nanogenerator(S-L/S-G TENG)was proposed.The output signal of the sensor can changes with transitions of solid-liquid and solid-gas contact under different boiling states,enabling the detection and online monitoring of four flow patterns formed in mini/micro-channel flow liquid boiling status under various operating conditions.This work provides a non-contact monitoring method for the online monitoring of flow liquid boiling state in mini/micro-channels,and also represents a novel application of triboelectric nanogenerator-based microfluidic sensing technology.
作者
陈远汾
罗欣欣
陈茗莎
林智钢
张德印
黄文鹏
肖崇永
Chen Yuanfen;Luo Xinxin;Chen Mingsha;Lin Zhigang;Zhang Deyin;Huang Wenpeng;Xiao Chongyong(School of Mechanical Engineering,Guangxi University,Nanning 530000,China)
出处
《微纳电子技术》
2025年第9期29-37,共9页
Micronanoelectronic Technology
基金
广西高校百人计划(T3010097923)。
关键词
摩擦纳米发电机(TENG)
沸腾状态监测
微小通道换热
固-液摩擦
流型识别
triboelectric nanogenerator(TENG)
boiling state monitoring
mini/micro-channel heat transfer
solid-liquid friction
flow pattern detection
